A distressed or printed denim jacket can instantly toughen up a loose pair of white pants. Keep the royal vibes of this white-and-blue outfit when ... you're going more casual) adds finesse.

Women's striped blue and white ... Bermuda denim shorts or even over a cami dress. The one to wear oversized: H&M Oversized Blue and White Striped Shirt, £19.99 / $19.99 The linen shirt ...

A classic white tee ... but for an outfit to read smart casual, you’ll want to slightly upgrade these everyday pieces. Katie Holmes, for instance, wore a denim-and-knitwear combo—but her ...